FIELD: construction.
SUBSTANCE: vacuumised insulated glasing unit with indicator comprises two or more glass sheets with gap of 0.15-0.2 mm, attached to each other along perimetre by sealing seam, with fixators between glass sheets, internal volume of which is pumped out down to pressure of not more than 10-3 mm of mercury column. On one of internal surfaces of glass sheets there is substance-indicator applied, which varies colour as pressure of rarefied gas in gap between glass sheets increases. Substance-indicator used is represented by synthetic zeolites. Indicator is arranged with linear size of 10-20 mm and is placed in any point on one of internal surfaces of glass sheets.
EFFECT: invention makes it possible to provide for visual inspection of rarefied gas pressure increase between insulated glasing unit glass sheets.
1 dwg, 2 ex
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